Hi there,

On Wed, 28 Apr 2021, Robert Kudyba wrote:

Since the signature name has .UNOFFICIAL and starts with MBL I believe
that's Malware Block List. I've submitted a sample to fp (at)
malwarepatrol.net. Is more than one sample needed? I'm posting here to let
others know and as they don't appear to acknowledge nor reply.

I can't help you with anything related to Malwarepatrol.

Why don't these come up?

sigtool --find-sigs  MBL_85256034*|sigtool --decode-sigs
sigtool --find-sigs  MBL_85256034|sigtool --decode-sigs
sigtool --find-sigs  MBL_85256034.UNOFFICIAL|sigtool --decode-sigs

As per the documentation I would write all those as

sigtool --find-sigs=MBL...

but I find that they seem to work without the '=' and that's a little
surprising to me.  I don't know why you're not seeing the output that
you expect, maybe sigtool isn't looking where you think it's looking,
or what you think is there isn't there?

Also, you need to be careful with special characters like '*', which
generally need to be hidden from the shell either by 'quoting' or by
'escaping' them - otherwise the shell may expand them before handing
the (now probably useless) command to your utility.  So I'd write

sigtool --find-sigs='MBL_85256034*' | sigtool --decode-sigs

I also see multiple signature whitelists with some duplication:
/var/lib/clamav/securiteinfo.ign2
/var/lib/clamav/sigwhitelist.ign2
/var/lib/clamav-unofficial-sigs/dbs-si/securiteinfo.ign2
/var/lib/clamav-unofficial-sigs/dbs-ss/sigwhitelist.ign2

That should be ok?

The duplication?  Shouldn't be a problem.  Small efficiency loss.

--

73,
Ged.

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